Structure 1830069 · Wake County, NC

Nc50 over Us70

Carries Nc50 over Us70, 0.3 Mi. S. Jct. Sr1004.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT212 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 6/9

212 ft end to end, longest span 65 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1952rebuilt 1962
Length211.9 ft64.6 m
Daily traffic12,500counted 2021
Last inspectedOctober 2023every 24 months

Location

StateNorth Carolina
CountyWake
Location0.3 Mi. S. Jct. Sr1004
CarriesNc50
CrossesUs70
Coordinates35.70652, -78.61347

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length211.9 ft (64.6 m)
Max Span65.0 ft (19.8 m)
Deck Width51.2 ft (15.6 m)
Deck Area1007.8 sq m
Main Spans4
Year Built1952 (reconstructed 1962)

Traffic

Avg Daily Traffic12,500 (2021)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001830069

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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